6-4 practice elimination using multiplication answers

Answers

Answer 1

Multiplication as a method of elimination is used to eliminate an unknown in a system of equations by multiplying one of the equations by a constant.

What is the Gauss method?

It is the method of eliminating unknowns that transforms a linear system into a triangular system, so that it is possible to solve the problem with retroactive resolution. Like for example:

2x+3y=143x-4y=4

A) The first step is to solve equation 2 to find the variable x.

3x=4y+4x=4y/3+4/3

B) The second step is to include the variable x found in equation 1.

2x(4y/3+4/3)+3y=14

17y/3=34/3

17y=34

C) The third step is to solve equation 1 to find the variable y.

17y=34y=2

D)Now that we've found the value of y, we can solve equation 1 to find the value of x.

x=4/3x(2)+4/3=4

Therefore, if the value of x is 4 and the value of y is 2, the solution of this exercise, using the Gauss method is (4;2).

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Related Questions

a A force of 100N is required to stretch a string that obeys Hooks law by 50cm. What is the work done in stretching the spring?​

Answers

Answer:

[tex]workdone \: in \: stretching \: a \: spring \: = \frac{1}{2}ke {}^{2} \\ workdone = \frac{1}{2}fe \\ beause \: f = ke \\ f = 1000 \: \: x = 50cm \: = 0.5m \\ w = \frac{1}{2} (100)(0 .5) { }^{2} \\w = 12.5 \: newtonpermetre[/tex]

Bill was injured on the job and hospitalized for several months

Answers

Answer:

WHAT HAPPENED TO BILL AFTER THAT???

According to this credit report how many accounts has lily had sent to collections

Answers

According to this credit report the number of accounts lily had sent to collections is zero.

What are collections on credit report?

Collections are known to be a form of a continuation of debt owed and it is one that can stay on a person's  credit report for like 7 years from the date the debt was said to first has become delinquent.

Based on the information that was given, there was no account that Lillie had sent to the collections and thus it is 0.

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Which of these is not a reason for percent yield to be less than theoretical yield?

Answers

Answer:>incomplete reactions, in which some of the reactants do not react to form the product

practical losses during the experiment

->side reactions (unwanted reactions that compete with the desired reaction)

->reversible reactions

->impurities in reactants

explantion

not a reason? if you ask a reason ,i can say An actual yield is the mass of a product actually obtained from the reaction. It is usually less than the theoretical yield. The reasons for this include:

The principal square root of any nonnegative real number is always nonnegative.

Answers

the principal square root of any non negative real number is always non negative. Remember that whenever we take square root both sides, let's say excess square is one.

What does "number 8 wire" mean to New Zealanders?
A It represents the ingenuity of New Zealanders, who, it is said, can fix anything with some
number 8 wire.
B. It represents the racial struggles between Europeans and Maori and the wire that was used to
create barriers
C. It represents the struggle of the bush, where number 8 wire was used to create rabbit-proof
fencing
D. It represents the idea that New Zealanders are outdoorsy and like to work on ranches.

Answers

Answer:

A

Explanation: Accordingly, the term "number 8 wire" came to represent the ingenuity and resourcefulness of New Zealanders, and the phrase "a number 8 wire mentality" evolved to denote an ability to create or repair machinery using whatever scrap materials are available on hand.

What does "number 8 wire" mean to New Zealanders?
A It represents the ingenuity of New Zealanders, who, it is said, can fix anything with some
number 8 wire.
B. It represents the racial struggles between Europeans and Maori and the wire that was used to
create barriers
C. It represents the struggle of the bush, where number 8 wire was used to create rabbit-proof
fencing
D. It represents the idea that New Zealanders are outdoorsy and like to work on ranches.

Cellular respiration and photosynthesis are two of the major processes involved in cycling carbon through the carbon cycle. Examine the model. What is one way the cellular respiration cycle carbon compounds through the biosphere?

Answers

Answer:

Cellular respiration releases carbon dioxide into the atmosphere.

Explanation:

Biochemical processes like photosynthesis and cellular respiration move matter and energy across the biosphere. These two processes make the exchange of carbon dioxide and oxygen between living things and their environment.

What is the role of cellular respiration in biosphere?

The carbon cycle includes crucial processes including photosynthesis and cellular respiration. The biosphere recycles carbon through processes known as the carbon cycle.

While photosynthesis draws carbon dioxide out of the atmosphere, cellular respiration releases carbon dioxide into the environment.

Animals can release carbon through this mechanism, just as organic waste and dead organisms do when they decompose and release carbon into the soil.

Therefore, Cellular respiration releases carbon dioxide into the atmosphere.

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A store has a sale where all hats are sold at a discount of 40

Answers

Assuming the regular price of the jackets is $80. The number of  jackets that could be bought at the sale if a shopper spent $576​ is: 12 jacket.

Number of sold jacket

First step is to find new price using this formula

New price=Regular price×(100-Discount)

New price=$80×(100%-40%)

New price=$80×60%

New price=$48

Second step is to find the number of sold jackets

Number of sold jacket=Amount spent/New price

Number of sold jacket=576 / 48

Number of sold jacket= 12 jackets

Inconclusion the number of  jackets that could be bought at the sale if a shopper spent $576​ is: 12 jacket.

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What does foil stand for in multiplying binomials brainly

Answers

Answer:

First

Outer

Inner

Last

Explanation:

Example : (2x + 3)(3x – 1)

First : (2x)(3x) = [tex]6x^{2}[/tex]

Outer : (2x)(-1) = -2x

Inner : (3)(3x) = 9x

Last : (3)(-1) = -3

Expanded equation :

[tex]6x^{2} + 9x - 2x - 3\\\\6x^{2} + 7x - 3[/tex]

help pls hurry time ticking hurry plsssssssssss

Answers

Answer:

option 1

Explanation:

cuz and open circle means a greater than or less sign and the down shaded part means 22 is greater

hope it helps :D

Answer:

The answer is C

Explanation:

It matches the graph shown.

Which of the following is an example of a conclusion?


Ultraviolet light causes skin cancer.



Drinking water may cause weight loss.



Leaves may change color during fall.




Ultraviolet light may inhibit plant growth

Answers

Answer:

I think leaves may change color during fall.

Explanation:

i guess... 1/4 chance

A 2-column table with 4 rows. The first column labeled elevation (meters) has entries 500, 1000, 1500, 2000. The second column labeled temperature of air (degrees celsius) has entries 11. 8, 8. 5, 5. 3, 2. 0. As elevation increases, temperature decreases. At which elevation will sound travel fastest? 500 meters 1,000 meters 1,500 meters 2,000 meters

Answers

Answer:

500 on edge :)

Explanation:

Answer:

A The first one! 500!

Explanation:

I got it right.

A chair has a mass of 10 kilograms on earth. What is the mass of the chair on mercury?

Answers

Answer:

The mass of the chair is 10kg.

Explanation:

The Mass of an object is unaffected by gravity. The Weight of an object is affected by gravity.

A person has parents with high cholesterol. how will this impact the person's risk of developing a blood disease? brainly

Answers

Answer:

The person will have a higher risk for atherosclerosis regardless of his current or past lifestyle choices.

Explanation:

The person will have a higher risk for atherosclerosis regardless of his current or past lifestyle choices.

What is Lifestyle choices?

The phrase "lifestyle choices" is presumably something you've previously heard of before I said it a minute ago. A lifestyle decision is a conscious, individual decision to engage in a behaviour that may raise or lower the risk of illness or damage.

You have undoubtedly already chosen your lifestyle. You made a wise lifestyle decision to improve your physical health if you ride your bicycle for exercise every morning.

If you decide against drinking alcohol, you are making a decision to forgo potentially dangerous outcomes like a  driving accident or internal organ damage, such as liver disease.

Therefore, The person will have a higher risk for atherosclerosis regardless of his current or past lifestyle choices.

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What would be the best search terms to use for a research project about the health benefits of exercise?

Answers

Answer: health benefits, exercise

Explanation:

Answer:

health benefits, exercise

Explanation:

Search terms are the words and phrases you enter into a search engine.

6-5 additional practice properties of special parallelograms

Answers

The properties of parallelograms are contained below:

They have opposite sides which are congruent to each other. BC = EDThey have Opposite angles which are congruent also.Consecutive angles are known to sum up to  180 degrees. They are supplementary.If an angle is right, all other angles are right.The diagonals are said to bisect each other.

What is a parallelogram?

This is a shape that is known to have four sides. Each of the sides is parallel to the side that is oppositev it.

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In the interview, dr. Dowell mentions that we live in a "small world. " the video explains that disease can spread in a matter of hours when people travel by airplane. How does the video connect to what dr. Dowell says? the video discusses disease but avoids how diseases spread. The video gives the same information as the interview about the spread of disease. The video gives less information than the interview about how easily disease can spread. The video gives more specific information about how easily diseases can spread

Answers

Answer:

D

Explanation:

edge 2022

the answer is right all you have to do is trust me

Answer:

D

Explanation:

Course 1 chapter 10 volume and surface area answer key

Answers

An example of Course 1 chapter 10 volume and surface area question is find the volume of the figure (image attached.) The volume is option C.

What is the surface area?

Surface area is a term that connote the total area which the surface of the object is said to occupy. It is often divided into a sum of base area(s) and also lateral surface area.

To solve for the volume,

v = ewh

v 7.2 (3.2) (5.2)

Therefore, v = 125.528m³

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What is the volume of this right prism? 96 in³ 60 in³ 48 in³ 44 in³

Answers

Option C) 48in³ is the correct answer.

Hence, the volume of the right triangular prism is 48in³.

This question is incomplete, the missing diagram is uploaded along this answer.

Given the data in the question;

Side length a; [tex]a = 4in[/tex]Side length b; [tex]b = 5in[/tex]Side length c; [tex]c = 3in[/tex]Height; [tex]h = 8in[/tex]

Volume; [tex]V = \ ?[/tex]

Volume of right triangular Prism

Volume is simply the space created when a surface is enclosed , it is the space that a quantity material that can be held.

The volume of a right triangular prism can be expressed as;

[tex]V = \frac{1}{4}h\sqrt{(a+b+c)(b+c-a)(c+a-b)(a+b-c)}[/tex]

To determine the volume of the right triangular prism, we substitute our given values into the expression above.

[tex]V = \frac{1}{4}h\sqrt{(a+b+c)(b+c-a)(c+a-b)(a+b-c)}\\\\V = \frac{1}{4}*8in*\sqrt{(4in+5in+3in)(5in+3in-4in)(3in+4in-5in)(4in+5in-3in)}\\\\V = \frac{1}{4}*8in*\sqrt{(12in)(4in)(2in)(6in)}\\\\V = \frac{1}{4}*8in*\sqrt{576in^4}\\\\V = \frac{1}{4}*8in*24in^2\\\\V = \frac{1}{4} * 192in^3\\\\V = 48in^3[/tex]

Option C) 48in³ is the correct answer.

Hence, the volume of the right triangular prism is 48in³.

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Answer:

The answer is [tex]48in^{3}[/tex].

Explanation:

Algebra 2 volume 2 houghton mifflin harcourt answers pdf

Answers

Algebra is a way we solve mathematical equations and the solution to the Algebra 2 in volume 2 exercise in the Hughton Mifflin pdf is 6.

What is algebra?

Algebra is a field of mathematics that aids in the presentation of word problems using mathematical expressions.

To construct a meaningful mathematical expression, variables (e.g. a,b, and c, etc) are combined with mathematical operations such as addition, subtraction, division, and multiplication.

From Algebra 2 volume 2 Mathematics: Chapter 12, Excercise 6, we have:

Find f(3) in f(x) = 0.75(2)ˣ  

We will replace x with (3) wherever we find (x)

So, f(3) = 0.75(2)³f(3) = 0.75(8)f(3) = 6

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What is the explicit rule for the geometric sequence? 9,6,4,83,… enter your answer in the box. an=

Answers

The explicit rule of the geometric sequence 9,6,4,83 is an = 9 × 2/3^(n - 1)

How to find explicit rule of a geometric sequence

The explicit rule of a geometric sequence is given by;

an = ar^(n - 1)

where,

a = first termr = common ration = number of terms

9,6,4,83....

So,

a = 9

r = 6/9 = 2/3

Therefore,.

an = a×r^(n - 1)

an = 9 × 2/3^(n - 1)

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the answer above is correct but the formatting can be confusing..

took the test, here's the answer

a titration experiment can be used to determine the

Answers

Answer:

exact amount of a substance

Explanation:

Experiment Titration is an analytical method used to determine the exact amount of a substance by reacting that substance with a known amount of another substance.

acid solution (of known concentration) required to neutralize it. The purpose of the titration is the detection of the equivalence point, the point at which chemically equivalent amounts of the reactants have been mixed. The amount of reactants that have been mixed at the equivalence point depends on the stoichiometry of the reaction.

15.1 central angles and inscribed angles homework answers

Answers

The central and inscribed angle theorem is used to solve angles and arc measure in a circle.

What is the Central and Inscribed Angles Theorem?

The theorem shows the relationship of the measures of an inscribed angle, central angle, and their intercepted arc.

It states that:

central angle measure = measure of inscribed angle.inscribed angle measure = 1/2(measure of inscribed angle)

Therefore, the central and inscribed angle theorem is used to solve angles and arc measure in a circle.

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classify each item as either part of the m2 measure of the money supply or as not part of the money supply.

Answers

The classification of each item as either part of the M2 measure of the money supply or as not part of the money supply is; detailed below

What is the classification of each item?

M2

- $900 billion in checkable deposits

- $2 trillion in savings accounts

- $1.25 trillion in small time deposits

- $900 billion in cash held by the public

- $650 billion in money market accounts

Not in the money supply

- $3trillion in government securities belonging to the Federal Reserve

- $4.5 trillion in credit card debt

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What was one of the primary challenges that lenin faced in converting russia into a communist state?

Answers

It faced intense opposition from a number of political, military, social and national groups. By the time of Lenin's death, in January 1924, the regime, despite all odds, were still in power. This was at the cost of millions of lives.

Question 1 with 1 blank si la puerta no está abierta, está 1 of 1. Question 2 with 1 blank marco está 1 of 1 porque tiene un examen hoy. Question 3 with 1 blank juan necesita dormir porque está 1 of 1. Question 4 with 1 blank felipe está 1 of 1 porque no encuentra nada interesante que hacer. Question 5 with 1 blank ana está 1 of 1 porque no encuentra el libro que busca. Question 6 with 1 blank debes limpiar (clean) el piso porque está 1 of 1

Answers

The missing words in the presented sentences are:

cerradapreocupadocansadoaburridoenojadasucio

How to identify missing words?

To identify the missing words in each sentence, we must review its basic structure, making sure that it has a subject, verb, and complement.

Additionally, we must identify to which category the missing words correspond, in this case they are adjectives. According to the above, the complete sentences would look like this:

1. Si la puerta no está abierta, está cerrada.

2. Marco está preocupado porque tiene un examen hoy.

3. Juan necesita dormir porque está cansado.

4. Felipe está aburrido porque no encuentra nada interesante que hacer.

5. Ana está enojada porque no encuentra el libro que busca.

6. Debes limpiar el piso porque está sucio.

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A forest ranger is walking on a path inclined at 5

Answers

Degrees to the horizontal directly towards a 100 foot tall fire observation tower???

Finding another person with your exact fingerprints is:

Answers

Answer : Impossible

Explanation : You Can't Find Someone With The Same Fingerprint.

Enjoy

A cylinder shaped drum is used to store used motor oil. The drum has a height of 3 ft and a radius of 1. 5 ft. How many cubic feet of oil does the drum hold? use 3. 14 to approximate pi. Enter your answer as a decimal rounded to the nearest hundredth in the box. Ft³

Answers

21.20ft^3 - I think

Explanation
To get the area of a 2d object, you would need to do (1.5•1.5)•3.14

So (1.5 • 1.5) =2.25

2.25•3.14 = 7.065

Now that you have the base, you need to multiply it by the height.

7.065 • 3 = 21.195 ≈ 21.20ft^3

Correct me if I am wrong

identify the true and false statements related to race, ethnicity, and work.

Answers

Race is the distinctive physical trait of a person, ethnicity is the social group an individual belongs to, while work is the physical or mental activities an individual is involved with.

The statements about race, ethnicity, and work

The statements made about race, ethnicity, and work that are true include the following:

Some lower-level jobs have shifted from African Americans to Hispanics over time.

Blacks are overrepresented in nursing, psychiatric, and home health aide positions.

The median income for Hispanics is higher than the median income for blacks.

The statements made about race, ethnicity, and work that are false include the following:

The median income for whites is higher than the median income for Asian Americans.

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